Two
types of instruments are used for the measurement of color:
1.
Tristimulus Colorimeters
2. Spectrophotometers
Tristimulus
Colorimeters:
Uses:
Tristimulus
colorimeters supply numerical data representing absolute value, and color
difference between a reference sample and a sample to be tested. They are used
mainly in quality control, to determine conformity to standards compatibility
with specified tolerances.
Working:
Light
is shone onto the object and part of the reflected light is collected, analyzed
and the intensity recorded.
Advantages:
·
Short
measuring time
·
Easy
to use
·
Relatively
low cost